复杂地应力场反演优化算法及研究新进展

发布时间：2018-06-15 02:30

本文选题：地应力 + 反演　；参考：《中国矿业大学学报》2015年02期

【摘要】：地应力是采矿工程和岩土工程设计与动力灾害防治的重要依据.地应力场反演是基于现场个别离散点应力测量结果,采用数力方法对目标区域的地应力分布的推算和拓展.本文系统介绍了区域地应力场反演和构建方法,重点阐述了他们的学术思想、应用领域以及优缺点,总结凝练了国内外学者在地应力反演算法和工程运用中作出的改进和创新,特别是非线性数理方法在地应力场反演应用中的新进展.本文提出了一种新的地应力场计算的非线性优化新算法——替代模型加速优化算法,该方法能够保证高精度、快速获得全局最优解.为了适用大规模地应力场反演,发展了能产生降阶和特征提取作用的特征正交分解地应力反演优化算法.最后,提出面向深部岩石工程和地质灾害防治的地应力场研究发展方向.
[Abstract]:Ground stress is an important basis for mining engineering, geotechnical engineering design and dynamic disaster prevention. The inversion of in-situ stress field is based on the stress measurement results of individual discrete points in the field. The numerical force method is used to calculate and expand the distribution of in-situ stress in the target area. In this paper, the inversion and construction methods of regional stress field are introduced systematically, their academic ideas, application fields, advantages and disadvantages are expounded, and the improvements and innovations made by scholars at home and abroad in the field of geostress inversion algorithm and engineering application are summarized. Especially, the application of nonlinear mathematical method in the inversion of in-situ stress field. In this paper, a new nonlinear optimization algorithm for the calculation of in-situ stress field, the accelerated optimization algorithm for substitute model, is proposed. This method can guarantee high accuracy and obtain the global optimal solution quickly. In order to apply to large scale inversion of in-situ stress field, an optimization algorithm for inversion of in-situ stress by orthogonal decomposition is developed, which can reduce the order and extract the feature. Finally, the research and development direction of in-situ stress field for deep rock engineering and geological disaster prevention is proposed.
【作者单位】：北京科技大学土木与环境工程学院;金属矿山安全高效开采教育部重点实验室;中国电子工程设计院;
【基金】：国家重点基础研究发展计划(973)项目(2010CB731500) 国家自然科学基金项目(41172264;U13612034)
【分类号】：TU45

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